We loved our stay at anucha's apartment. He was very helpful and let us know about the area and the interesting things nearby. He was always available if we needed anything and we found the place very clean and comfortable.
The location is good, as there is a regular songtheu service outside of the condo on udom suk 51 just north of sukhumvit 101/1. Just wave down any red songtheu and say "bts", it's only 7 baht. Also there is a white songtheu service to take you to seacon and the rot fai night market (very, very cool) for about the same price and it comes direct to the front of the condo. Just say seacon. There is a 711 right next door and a small 24 grocer about 3 mins walk away. Udom suk has some interesting local beer gardens and restaurants, all within a 15-30 minute walk, depending on how far you want to go.
All in all, a great option for Bangkok, and although it may not be the closest to the major attractions, they are within striking distance via the bts and the added benefit of being near some more obscure an unique markets/malls makes it a great option for anyone.